blihanstealer | c733d0ee33adb00191662532bfe57ff8c85cc1b972b0b8b5d31e32619aaa787c

Analysis

max time kernel
149s
max time network
149s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
03/05/2026, 11:10

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General

Target
2026-05-03_ff61ec5a712ce5ae5dd38ed5a8c74435_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
Size 299KB
Sample260503-m97faafy8x
SHA256 c733d0ee33adb00191662532bfe57ff8c85cc1b972b0b8b5d31e32619aaa787c
MD5 ff61ec5a712ce5ae5dd38ed5a8c74435
SHA1 28b344906fe6231f45a756307f95800de225b658
SHA512 8ca663ec33b5d97c573d492c4cda5f84670e1c4e73fbd4d45a43f8ed62fa839833df7151f52b3d4679438380e87b5db339523f9015ebf6b03e46ea2ead03e429
SSDEEP 3072:lAo1lOwvlKlXBP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXahNf:W9nvWDKW1Lgbdl0TBBvjc/oVM6
TLSH
T1C954AE1275C1C1B3C462003145E6DB3D9A7B78210BF9D6D7BBDC9A6A2E512D0E63A2CB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery blihanstealer persistence stealer trojan

Malware Config

Extracted

Family

blihanstealer

Mutex

pomdfghrt

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; CIBA; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)

Signatures

Family: BlihanStealer
Blihan is a stealer written in C++.
trojan stealer blihanstealer

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/4200-0-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000d000000027002-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4200-5-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4956-7-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/5036-8-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
5036	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
5036	microsofthelp.exe
4956	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-600123060-2148212387-2211176695-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-03_ff61ec5a712ce5ae5dd38ed5a8c74435_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-05-03_ff61ec5a712ce5ae5dd38ed5a8c74435_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-05-03_ff61ec5a712ce5ae5dd38ed5a8c74435_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4200 wrote to memory of 5036	4200	2026-05-03_ff61ec5a712ce5ae5dd38ed5a8c74435_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-05-03_ff61ec5a712ce5ae5dd38ed5a8c74435_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-03_ff61ec5a712ce5ae5dd38ed5a8c74435_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4200
- C:\Windows\microsofthelp.exe
  "C:\Windows\microsofthelp.exe"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:5036

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:4956

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 299KB
SHA256 ed8e673c1033124a4be60833b6830ae1c877d6c8d53c4bd240ba26340502b5ac
MD5 50a1f77766ba8f7a65913111997c1163
SHA1 2662f1fe178e64152da1b0628bac41498dec3767
SHA512 4170278267da7c2d7e40dd670e1e9a732aca6945b999535b174962c9e08f02b26e0556f6b7301eca8872fdaa7bb5cac3ef408e9ee4a18a74c139dfee80abed79
SSDEEP 3072:lAo1lOwvlKlXBP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXahNS:W9nvWDKW1Lgbdl0TBBvjc/oVM6
TLSH
T14054AE1275C1C1B3C462003145E6DB3D9A7B7C210BF9D6D7BBDC9A6A2E512D0E63A2CB
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4200-0-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/4200-5-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/4956-7-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/5036-8-0x0000000000400000-0x000000000040F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads